생산성연구원

심우곤 선임

@wgshim

wgshim@gmail.com

woogon.shim@lge.com

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Health Care

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Health Care

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Company Overview

• Vision: “Global Top 3 IT Company by 2010”

• Size: globally 84,000+ employee (2008 year)

– Domestic: 28,659– Oversea: 55,786

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Development Characteristics

• End Products (HW + SW) – Stretched (fixed) schedule + fixed requirements

• Global launching• Defects after release, cause recall!!• Portion of SW is increasing more and more!

• Short development schedule• Bitter competition of market• Develop multiple models, concurrently• Reflect market/customer needs, rapidly

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The key is

Professionalism!

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The Boy Scout Rule!

“Leave the campground cleaner than you found it”

-- Robert C. Martin, “Clean Code”

TDD (Unit Test), Refactoring

At the first time,Bottom Up Approach!

Just Focuses onNew & Changed Features

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Plan

• Select one team• Give 2 (full) day lecture• Select 2~3 developers (active & fresh)• 3+ month on-site coaching

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Actual

• Ported UTF on our develop. environment.• Got a few “Unit Tested” features• Refactoring a key feature of a module

• Tried to apply mock without readiness of HW or 3rd party library• Gave some seminars (1 hr, 15 times) what they

frequently made mistakes.• Built some scripts and tools for them.

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Lessons Learned

• Hard to work with developers (Busy!!)• Close relationship is important• Need to give some values to them

Everyday with Bad Code!!

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ME

Select one whole modulefor showing as an example!

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Plan

• Select a whole module + one developer– Ownership & Validation on target

• Give half day lecture• 1 month (6+ month: maintenance)

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Actual

• Ported UTF on our develop. environment.• Made a Best Practice– Extract core logic from

UI and HW dependent code– 400+ automated unit test cases– 100% (statement) code coverage– All regression test takes < 1s– Used as a company-wide standard

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Lessons Learned

• Easy to progress and achieve• Hard to spread it• A few people feel better for using this way

• TDD, Unit Testing is not easy!! (2 year experience)

• Still NAH syndrome!

Next Step: Combining with Scrum

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Last Year

• Just support only volunteer team– Visibility and light-weight process : SCRUM!– Strong commitment, but bottom-up approach

• As simple as possible è on demand– Trust them!

• Share and Follow by themselves!

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Current Status

• A few Scrum teams launch XP practices

• Unfortunately, top down approach!– Top manager doesn’t care what it is.

Journey of our team

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2004 2006 2008 2010200920072005

김 창준(애자일 컨설팅 社)

“Agile, XP”

Software 6σSoftware 6σ

Agile, XPAgile, XP

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2004 2006 2008 201020092007

James W. Grenning(Object Mentor 社)

“Extreme Programming Immersion for

Embedded Software Developers”

2005

Software 6σSoftware 6σ

Agile, XPAgile, XP

Embedded AgileEmbedded Agile

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2004 2006 2008 201020092007

Bas Vodde(Odd-e 社)

“Certified ScrumMaster”

2005

Software 6σSoftware 6σ

Agile, XPAgile, XP

Embedded AgileEmbedded Agile

ScrumScrum

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2004 2006 2008 2010200920072005

James W. Grenning(Renaissance Software Consulting 社)

“TDD in C”

Software 6σSoftware 6σ

Agile, XPAgile, XP

Embedded AgileEmbedded Agile

ScrumScrum

TDD in CTDD in C

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2004 2006 2008 2010200920072005

James W. Grenning(Renaissance Software Consulting 社)

“Agile Embedded Design in C”

Software 6σSoftware 6σ

Agile, XPAgile, XP

Embedded AgileEmbedded Agile

ScrumScrum

TDD in CTDD in C Design Principles(embedded)

Design Principles(embedded)

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2004 2006 2008 2010200920072005

Rebecca Wirfs-Brock(Wirfs-Brock Associates 社)

“Agile Development and Design:Principles and Best Practices”

Software 6σSoftware 6σ

Agile, XPAgile, XP

Embedded AgileEmbedded Agile

ScrumScrum

TDD in CTDD in C Design Principles (embedded)

Design Principles (embedded)

Design PrinciplesDesign Principles

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2004 2006 2008 2010200920072005

Software 6σSoftware 6σ

Agile, XPAgile, XP

Embedded AgileEmbedded Agile

ScrumScrum

TDD in CTDD in C Design Principles (embedded)

Design Principles (embedded)

Design PrinciplesDesign Principles

Bas Vodde(Odd-e 社)

“Certified ScrumMaster”+

Agile and Lean for PM

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2004 2006 2008 2010200920072005

2004 2006 2008 2010200920072005

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2004 2006 2008 2010200920072005

2004 2006 2008 2010200920072005

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2004 2006 2008 2010200920072005

2004 2006 2008 2010200920072005

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2004 2006 2008 2010200920072005

2004 2006 2008 2010200920072005

Lean SigmaSix Sigma

6σLean

Waste EliminationWPPM

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Thank You!

Q & A

Appendix

http://www.agilejournal.com/content/view/411/33/

The 5 Levels of Agility populated with Agile Practices and ConceptsAhmed Sidky

TDDPair Pgm.

Unit Test